NATHANIEL DALEY WHELTON AGACNP
NPI 1750987947
Nurse Practitioner - Acute Care in Honolulu, HI
About Nathaniel Daley Whelton Agacnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHANIEL DALEY WHELTON AGACNP (NPI 1750987947) is an individual acute care provider in Honolulu, Hawaii, licensed in Hawaii (APRN-3454) and active in the NPI registry since December 2020. He is enrolled in Medicare PECOS, is affiliated with Hilo Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nathaniel Daley Whelton Agacnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Nathaniel Whelton reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 859 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- Medicare enrollment name: The Queens Medical Center
- 809 clinicians in this Medicare group
Hilo, HI 96720
- Reassigned Medicare billing, Hawaii enrollment
- 43 clinicians in this Medicare group
Salem, OR 97301
- Reassigned Medicare billing, Oregon enrollment
- 625 clinicians in this Medicare group
Colton, CA 92324
- Reassigned Medicare billing, Hawaii enrollment
- 56 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hilo Medical Center
Acute Care Hospitals · Hilo, HISalem Hospital
Acute Care Hospitals · Salem, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96813 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HONOLULU, HI 96813
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nathaniel Whelton's NPI number?
The NPI number for Nathaniel Whelton is 1750987947. It was assigned to this individual provider in the NPPES registry on December 11, 2020.
Where is Nathaniel Whelton located?
Nathaniel Whelton practices at 1301 Punchbowl St, Honolulu, HI 96813. The listed phone number is (808) 691-1000.
What is Nathaniel Whelton's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Nathaniel Whelton enrolled in Medicare?
Yes. Nathaniel Whelton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Nathaniel Whelton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Whelton reassigns Medicare benefits to 5 organizations: Queens University Medical Group (Honolulu, HI), The Queen's Medical Center (Honolulu, HI), Hawaii Post-Acute Medical Services 1 Inc (Hilo, HI), Salem Health (Salem, OR) and Quantum Healthcare Medical Associates Inc. (Colton, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nathaniel Whelton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nathaniel Whelton affiliated with any hospitals?
According to CMS data, Nathaniel Whelton is affiliated with Hilo Medical Center and Salem Hospital.
When was this NPI record last updated?
The NPPES record for Nathaniel Whelton was last updated on April 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Nathaniel Daley Whelton, AGACNP · NPI 1750987947
Acute Care physician in Honolulu, Hawaii. Individual provider, active in the CMS NPPES registry since December 11, 2020.
## Identity
- **NPI:** 1750987947 (Entity type: Individual)
- **Enumerated:** December 11, 2020
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** APRN-3454 (Hawaii)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1301 PUNCHBOWL ST, Honolulu, HI 96813-2499
- **Phone:** (808) 691-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Queens University Medical Group (NPI 1891441382, Honolulu, HI); The Queen's Medical Center (NPI 1487693586, Honolulu, HI); Hawaii Post-Acute Medical Services 1 Inc (NPI 1780171074, Hilo, HI); Salem Health (NPI 1265431829, Salem, OR); Quantum Healthcare Medical Associates Inc. (NPI 1568490597, Colton, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** April 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1750987947) · Data from the CMS NPPES public registry.